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Circuit Bench

  • AM Receiver (CB7490E)

           We found this 4-transistor receiver for the AM MW range in a 1960 transistor manual from Sylvania....

  • 200mW Amplifier (CB23554E)

      This small auxiliary amplifier was found in a Radio Electronics from May 1958. Power is supplied with...

  • Power Darlington Stage (CB22365E)

      This circuit is an alternative to using Darlington power transistors in the previous amplifier. The...

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